bundles/postfix: introduce

bundles/postfix/metadata.py

@@ -0,0 +1,29 @@
+defaults = {
+    'apt': {
+        'packages': {
+            'postfix': {},
+        },
+    },
+}
+
+@metadata_reactor
+def letsencrypt(metadata):
+    if not node.has_bundle('letsencrypt'):
+        raise DoNotRunAgain
+
+    result = {
+        'reload_after': {
+            'postfix',
+        },
+    }
+
+    myhostname = metadata.get('postfix/myhostname', None)
+
+    if myhostname and myhostname != metadata.get('hostname'):
+        result['domains'] = {
+            myhostname: {},
+        }
+
+    return {
+        'letsencrypt': result,
+    }